Efficient catalysts for the two-phase hydroformylation of long-chain α-olefins

被引：20

作者：

Bischoff, S ^{[1
]}

Kant, M ^{[1
]}

机构：

[1] Inst Appl Chem Berlin Adlershof, D-12489 Berlin, Germany

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2000年 / 39卷 / 12期

关键词：

D O I：

10.1021/ie0005102

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, we report on novel Rh/phosphonate-phosphine catalysts for the aqueous two-phase hydroformylation of long-chain olefins. The amphiphilic ligands Ph2P-(CH2)(10)-PO3Na2 and Ph2P-(CH2)(12)-PO3Na2 have been shown to form Rh catalysts that are superior to Rh/TPPTS systems. Aldehyde selectivities higher than 95% and high activities (e.g., TOF of 660 h(-1) at 88% yield) were achieved. Counterions such as Na+, K+, NH4+, and NH3Pr+ influence the catalyst retention, whereas the lowest rhodium losses into the organic phase were found with a sodium phosphonate ligand. Phase separation by simple decantation was accelerated when methanol was added to the biphasic system.

引用

页码：4908 / 4913

页数：6

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